Spirit Medicine is a potion used to eliminate the common cold. Made by Fiel for Plum and Azril it is seen as valuable and a potion of sorts. It forcible excites certain spirits for a certain time to eradicate the spiritual malady from the body. However Fiel spiked it so whatever female who took it, will want to get sexual with another girl who has not taken the potion. Plum however is immune to these affects due to him being a boy.